| Willebroek to Kastoria | 1,088.09 mi (1,751.11 km) |
| Willebroek to Katerini | 1,144.87 mi (1,842.49 km) |
| Willebroek to Keratsini | 1,303.53 mi (2,097.82 km) |
| Willebroek to Kerkyra | 1,089.09 mi (1,752.72 km) |
| Willebroek to Kiato | 1,271.24 mi (2,045.86 km) |
| Willebroek to Kifisia | 1,304.37 mi (2,099.18 km) |
| Willebroek to Kilkis | 1,122.92 mi (1,807.16 km) |
| Willebroek to Komotini | 1,214.52 mi (1,954.57 km) |
| Willebroek to Korinthos | 1,281.18 mi (2,061.85 km) |
| Willebroek to Koropi | 1,316.04 mi (2,117.96 km) |
| Willebroek to Korydallos | 1,303.81 mi (2,098.28 km) |
| Willebroek to Kos | 1,491.57 mi (2,400.45 km) |
| Willebroek to Kozani | 1,117.47 mi (1,798.40 km) |
| Willebroek to Lagos | 1,200.86 mi (1,932.59 km) |
| Willebroek to Lamia | 1,212.95 mi (1,952.06 km) |
